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MPC8314 not detecting Qualcomm QCA6174A based M.2 radio card but detecting realtelk RTL8822be based M.2 radio

Question asked by naveen k v on Dec 8, 2019
Latest reply on Dec 19, 2019 by naveen k v

Hi,

 

My MPC8314 based custom board is not detecting Qualcomm Atheros QCA6174A chipset based M.2 radio cardbut is detecting 

Realtek RTL8822be based M.2 radio card.

My u-boot version is 2009.03.

I understand RTL8822be is PCIe1.1 and QCA6174 is PCIe 2.1. 

Isn't PCIe 2.1 backward compatible ?

My board is detecting PCIe 2.0 based cards.

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